Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
An Old World native, collected by C. K. Dodge in the 1890’s as a weed along the streets of Port Huron (St. Clair Co.). The only other Michigan collection is as a probable garden escape along a gravel driveway in Birmingham (Oakland Co.) in 1977.
St. Clair County
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://michiganflora.net/species.aspx?id=666.